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What is the design pattern of WordPress Core? As this Stack Overflow question shows, WordPress does not follow the MVC pattern; however, developers can write plugins and themes that follow MVC. But my question pertains exclusively to WordPress Core, not to any additional add-ons, themes, extensions, plugins, or forked projects that may or may not follow an MVC pattern.

If WordPress Core does not follow an MVC design, then what design pattern does it follow?

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    Simply none. There are a bunch of files, with zillion of functions, some classes and a big hope that everything will work. – gmazzap Nov 28 '14 at 20:04
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    Totally agree with @G.M. there is no conclusive, stringent pattern, but of course some design decisions have been made, for example this might be interesting for you: Wordpress and event-driven programming - what is it about?. – Nicolai Nov 28 '14 at 21:06
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Spaghetti with meatballs

The term "spaghetti with meatballs" is a pejorative term used in computer science to describe loosely constructed object-oriented programming (OOP) that remains dependent on procedural code. It may be the result of a system whose development has included a long life cycle, language constraints, micro-optimization theatre, or a lack of coherent coding standards.

It also has a bit of macaroni mixed in...

http://en.wikipedia.org/wiki/Spaghetti_code#Spaghetti_with_meatballs

  • Ayy....LM∀O !!! The term is super funny and it flips many of the ardent WP devs :P – Mohd Abdul Mujib Jul 31 at 22:07
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WordPress uses the Event Driven Architecture due to action/hook API.

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I think it is a singleton design pattern, as there is base class and base object called $wp which is global object.

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